(19)

(11)

EP 0 050 650 A1

(12)

(43) Date of publication: 05.05.1982 Bulletin 1982/18 (21) Application number: 81901250.0 (22) Date of filing: 20.04.1981

(51) International Patent Classification (IPC):  A61K 9/ 16( . ) A61K 31/ 43( . ) A61K 9/ 22( . ) (86) International application number: PCT/US1981/000520 (87) International publication number: WO 1981/002975 (29.10.1981 Gazette 1981/25)

(84) Designated Contracting States: CH DE FR GB LI NL SE (30) Priority: 21.04.1980 US 19800142279 (71) Applicant: UNIVERSITY OF SOUTHERN CALIFORNIA Los Angeles, California 90007 (US)	(72) Inventor: SWARBRICK, James Pasadena, CA 91108 (US)